The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 21, 2023
Filed:
Feb. 24, 2022
Applicant:
Macronix International Co., Ltd., Hsinchu, TW;
Inventors:
Assignee:
MACRONIX INTERNATIONAL CO., LTD., Hsinchu, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 16/34 (2006.01); G11C 16/04 (2006.01); G11C 16/10 (2006.01); G11C 16/24 (2006.01); G11C 16/28 (2006.01); G11C 16/30 (2006.01); G11C 16/08 (2006.01);
U.S. Cl.
CPC ...
G11C 16/3459 (2013.01); G11C 16/0433 (2013.01); G11C 16/08 (2013.01); G11C 16/102 (2013.01); G11C 16/24 (2013.01); G11C 16/28 (2013.01); G11C 16/30 (2013.01);
Abstract
A memory device and an operation method thereof are provided. The operation method includes: when a read operation or a write-verify operation is completed, during a word line voltage lowering phase, synchronously applying a plurality of different gradually lowering signal line reference voltages to a plurality of ground select lines and a plurality of string select lines, wherein values of the different gradually lowering signal line reference voltages are corresponding to a plurality of signal line positions of the ground select lines and the string select lines.